Microsoft/TypeScript
Vedi su GitHubDiagnostic for incompatible overload signature doesn't explain why
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#48.186 aperta il 9 mar 2022
BugDomain: Error MessagesHelp Wanted
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Descrizione
Bug Report
🔎 Search Terms
function incompatible overload implementation signature assignability TS2394
🕗 Version & Regression Information
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about function overloads
⏯ Playground Link
Playground link with relevant code
💻 Code
function example(overloaded: string): string;
function example(actual: number, option?: boolean): string {
return `${actual}${option}`;
}
🙁 Actual behavior
A single line of error message that doesn't indicate which parameter or return type is the issue.
function example(overloaded: string): string;
// ~~~~~~~
// Error: This overload signature is not compatible with its implementation signature.
🙂 Expected behavior
Can we elaborate on that error message with the first assignability issue?
Bikeshedding on the error message specifics welcome...
function example(overloaded: string): string;
// ~~~~~~~
// Error: This overload signature is not compatible with its implementation signature.
// Overload parameter 'overload: string' is not assignable to implementation parameter 'actual: number'.